Means for tightening bolting-cloths



I. DICK.`

(No Model.)

H .T 0 L nu G A N I, T L 0 B G N .l N E T H nu. T. miv R o P.. S N A w- .n0 ,00 4 4 2 0 N Patented July 19, 1881.

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UNITED STATES PATENT OFFICE.

IEA DICK, oF MUNCIE, INDIANA.

M EANS .FOR-TIGHTENYING BOLTING-CLOTHS.

SPECIFICATION forming part of Letters Patent No. 244,383, dated July 19, 1881.

Application led March 28, 1881. (No model.)

To all whom it may concern Beit known that I, IRA DICK, a citizen of the United States, residing at Muncie, in the county of Delaware and State of Indiana, have invented a new and useful Improvement in Means for Tightening Bolting-Gloths, Ste., of which the following is a specification.

My invention relates to improvements in that class of devices for tightening boltingcloths in which the cloth is tacked to a strip of wood, which is operated in combination with the shaker-frame, and in which thumb-screws are used ior tightening the cloth; and the objects of my invention are, first, to construct a simple device for stretching the cloth each way, (in length and breadth second, to arrange a shaker-frame so that the tightening device can be operated when the machine is in motion, and especially', third, to facilitate the tightening of bolting-cloths on middlings-puriers. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l is a top view of the shaker-frame, showing its construction. Fig. 2 is an end view ot' one ot' the sides (or ends) of the shakerframe, showing the two thumb-screws (or the adjusting and clamping bolts) and. all ofthe cooperating parts. Fig. 3 is a perspective view of one ot' the sides of the frame, showing the slots in the cleat in which the clamp-screws work. Fig. 4 is an end view of one ofthe sides, showing another form of supporting the clothbar. Fig. 5 is a perspective view of the cleatbar corresponding to the forni in Fig. 4.

Similarletters refer to similar parts throughout-the several views.

The sides and ends of the frame are marked a, b, and e, and are braced across the center by bars t. a are the rails oi' the frame, through the lower edge of which the adjusting-screws pass, and at or near the middle of the inside of the said rails the cleat-barb-is secured by screws, as shown in Fig. 3. The said cleats have slots out in them,as shown in Figs. 3 and 45 5. Through each of these slots a clamp-screw, c, passes. When the clamp-screw c is loose the cloth-bar c can be easily moved by the adjusting-screwf. To the under side of the bar c the cloth i is tacked, or it may be secured to one 5o side and bottom of the bar c, as shown at Figs. 2and4. Theadjusting-bolt f passes through the lower portion of the baraand through the clothbare horizontally. The clamp-screw c passes through the cleat band cloth-bar c perpendicularly. The clamp-screw c is for the purpose of keeping the cloth -bar c and the cleat clamped tight together. To Aoperate the device it is only necessary to loosen the screw c and then loosen or tighten the cloth, as desired, 6o by the adjusting-screwf.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a shaker-frame, the combination, with the cloth-bar and a supporting-bolt, of the clamp-bar having grooves or slots, for the purpose set forth.

2. In a shaker-frame, the combination of the clamp-bar and the cloth-bar having a clamp- 7o bolt passing through it Yperpendicularly and an adjusting-bolt passing through it horizontally into the side rails ofthe shaker-frame, for the purpose set forth.

3. rI he combination of the bar a, cleat or clamp-bar b, clamp-screws c and n, and the adjusting-screws f, substantially as and for the purpose set forth.

- IRA DICK. Witnesses:

C. E. ADAMsoN, W. C. KLINE. 

